What is skills CLAUDE.md?

Project instructions for a monorepo, a repository containing multiple related packages, of Claude Code skills and TypeScript tools. They describe the layout, commands, architecture, and links between the parts.

Use them when changing skills, shared packages, the agent pipeline, documentation, the marketplace, or repository-wide build and test workflows.

They help a coding assistant understand where skills and packages live and which commands to use for building, testing, linting, documentation, and releases.

How JS-mark/skills configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to JS-mark/skills. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/JS-mark/skills/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/JS-mark/skills

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/js-mark/skills/claude-md/github.svg)](https://agentmods.dev/instructions/js-mark/skills/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/js-mark/skills/claude-md"><img src="https://agentmods.dev/badge/instructions/js-mark/skills/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/js-mark/skills/claude-md"><img src="https://agentmods.dev/badge/instructions/js-mark/skills/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 1,315 This file is loaded in full into every session.

When invoked 1,315 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.01315	$0.01315
Opus 5.5	$0.00526	$0.00526
Sonnet 5.5	$0.00263	$0.00263
Haiku 4.5	$0.00131	$0.00131

Measured 2mo ago against content hash 1df7c24455b3, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

skills CLAUDE.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

CLAUDE.md · 132 lines

How it starts

The opening of the file, as written. The whole thing — 132 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Project Overview

A monorepo containing Claude Code Skills (Markdown-based agent instructions) and supporting TypeScript packages. Skills are pure Markdown consumed by Claude Code's skill system; packages provide runtime tooling (MCP servers, dashboards, shared utilities).

Commands

pnpm install                    # Install dependencies
pnpm build                      # Build all packages (recursive)
pnpm test                       # Run all tests (vitest)
pnpm test -- packages/shared    # Run tests for a single package
pnpm test:watch                 # Watch mode
pnpm lint                       # Lint (eslint, @antfu/eslint-config)
pnpm lint:fix                   # Lint and auto-fix
pnpm gen:skill <name>           # Scaffold a new skill
pnpm update-plugin              # Rebuild & copy agent-pipeline to ~/.claude/plugins/
pnpm release                    # Version bump (bumpp)
pnpm docs:dev                   # VitePress dev server
pnpm docs:build                 # Build documentation site
pnpm market:dev                 # Marketplace Nuxt dev server
pnpm market:build               # Build marketplace for production

Architecture

skills/                → Claude Code Skills (pure Markdown, NOT in pnpm workspace)
  <name>/SKILL.md        Frontmatter (name, description, version, author, tags) + instructions
  <name>/references/     Supporting docs for the skill

packages/              → TypeScript packages (pnpm workspace members)
  agent-pipeline/        MCP server (@modelcontextprotocol/sdk) — orchestrates multi-agent dev pipeline
    src/server.js          MCP tool definitions (no build step, raw JS)
    dashboard/             Pre-built Next.js static export (copied from pipeline-dashboard)
  pipeline-dashboard/    Next.js web UI for monitoring pipeline progress (private, not published)
  shared/                Shared TS utilities — built with tsdown (ESM + CJS + dts)

apps/                  → Web applications & sites (pnpm workspace members)
  docs/                  VitePress documentation site (private)
  marketplace/           Nuxt 3 app — Skill & MCP marketplace (Vercel deployed, SSR)

scripts/               → Dev tooling (run with tsx)
  gen-skill.ts           Scaffold new skill directory
  update-plugin.ts       Build dashboard + copy agent-pipeline to local plugin install

Read the full file on GitHub · 132 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

2mo ago First seen · 132 lines · 1,315 tokens per session scan A 1df7c24455b3

Subscribe to this mod's changes

skills CLAUDE.md is an instructions file published in the GitHub repository JS-mark/skills (2 stars, last pushed 3mo ago), licensed MIT. It adds 1,315 tokens to every session, about $0.0053 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

skills CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
skills CLAUDE.mdJS-mark/skills	Instructions file	2	3mo ago	MIT	A	1,315	Claude Code
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	yesterday	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

skills: Instructions file for Claude Code